Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China

Hydrological condition is one of the most important factors affecting the abundance and distribution of waterbirds in large freshwater floodplains, as it influences their habitat and food availability. The hydrological condition is commonly indicated with site-based hydrological data such as water l...

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Autores principales:	Jiakun Teng, Shaoxia Xia, Yu Liu, Xiubo Yu, Houlang Duan, Han Xiao, Chuanpeng Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Wintering geese Habitat suitability NDWI Water level Poyang Lake Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/8d3f08b1ef12492fb8d88e8adc7717fb
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spelling	oai:doaj.org-article:8d3f08b1ef12492fb8d88e8adc7717fb2021-12-01T04:40:52ZAssessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China1470-160X10.1016/j.ecolind.2020.107260https://doaj.org/article/8d3f08b1ef12492fb8d88e8adc7717fb2021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20311997https://doaj.org/toc/1470-160XHydrological condition is one of the most important factors affecting the abundance and distribution of waterbirds in large freshwater floodplains, as it influences their habitat and food availability. The hydrological condition is commonly indicated with site-based hydrological data such as water level. Site-based data have high temporal resolution but are less effective to represent the spatial characteristics, a requirement for ecological/habitat models. In this study, we propose a method to identify suitable habitats for wintering geese based on the Normalized Difference Water Index (NDWI) derived from Sentinel-2 satellite images. The relationships between NDWI, water level and geese occurrence were analyzed. The results showed that the NDWI of Poyang Lake can explain 75% of the changes in water level and at least 42% of the geese occurrence during wintering periods (with the exception of February 2019). The monthly NDWI optimal ranges suitable for wintering geese were identified to be from −0.12 to 0 and suitable NDWI threshold range is from −0.27 to 0.14. Based on this threshold range, we identified the suitable habitat for geese and found that the suitable habitat area first increased and later decreased during the whole wintering periods, following an inverted U-shaped dynamic. We concluded that NDWI can be used to improve distribution models of waterbird species to support their protection and wetland management.Jiakun TengShaoxia XiaYu LiuXiubo YuHoulang DuanHan XiaoChuanpeng ZhaoElsevierarticleWintering geeseHabitat suitabilityNDWIWater levelPoyang LakeEcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107260- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wintering geese Habitat suitability NDWI Water level Poyang Lake Ecology QH540-549.5
spellingShingle	Wintering geese Habitat suitability NDWI Water level Poyang Lake Ecology QH540-549.5 Jiakun Teng Shaoxia Xia Yu Liu Xiubo Yu Houlang Duan Han Xiao Chuanpeng Zhao Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
description	Hydrological condition is one of the most important factors affecting the abundance and distribution of waterbirds in large freshwater floodplains, as it influences their habitat and food availability. The hydrological condition is commonly indicated with site-based hydrological data such as water level. Site-based data have high temporal resolution but are less effective to represent the spatial characteristics, a requirement for ecological/habitat models. In this study, we propose a method to identify suitable habitats for wintering geese based on the Normalized Difference Water Index (NDWI) derived from Sentinel-2 satellite images. The relationships between NDWI, water level and geese occurrence were analyzed. The results showed that the NDWI of Poyang Lake can explain 75% of the changes in water level and at least 42% of the geese occurrence during wintering periods (with the exception of February 2019). The monthly NDWI optimal ranges suitable for wintering geese were identified to be from −0.12 to 0 and suitable NDWI threshold range is from −0.27 to 0.14. Based on this threshold range, we identified the suitable habitat for geese and found that the suitable habitat area first increased and later decreased during the whole wintering periods, following an inverted U-shaped dynamic. We concluded that NDWI can be used to improve distribution models of waterbird species to support their protection and wetland management.
format	article
author	Jiakun Teng Shaoxia Xia Yu Liu Xiubo Yu Houlang Duan Han Xiao Chuanpeng Zhao
author_facet	Jiakun Teng Shaoxia Xia Yu Liu Xiubo Yu Houlang Duan Han Xiao Chuanpeng Zhao
author_sort	Jiakun Teng
title	Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
title_short	Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
title_full	Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
title_fullStr	Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
title_full_unstemmed	Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China
title_sort	assessing habitat suitability for wintering geese by using normalized difference water index (ndwi) in a large floodplain wetland, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/8d3f08b1ef12492fb8d88e8adc7717fb
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Assessing habitat suitability for wintering geese by using Normalized Difference Water Index (NDWI) in a large floodplain wetland, China

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